Don't oxidisers go off when exposed to air? A 15kg tub would last me a year would it stll be at full strength after such a long exposure?
And does'nt it take away my choose to Whether to add an oxidiser or not. If I went on a training course and told the instructor I use oxidiser on everything, even before I see the job I mix an oxidiser with my pre spray..... What would they say?
And why chose to sell it only in 15kg containers, when most pre sprays are sold in 5kg tubs, is it a bit like the companies who only sell supermarket advertising on 3 yr contracts? They know if they sold it in smaller amounts they wouldn't come back, so need to sell as much as possible